Datasheet

ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller QFP 64 (14x14) 16-Bit 16 MHz I/O number 47

Section 9 I/O Ports

Rev. 3.00 Sep. 10, 2007 Page 140 of 528

REJ09B0216-0300

P21/RXD pin

Register SCR3 PCR2

Bit Name RE PCR21 Pin Function

Setting Value 0 0 P21 input pin

1 P21 output pin

1 x RXD input pin

[Legend] x: Don't care.

P20/SCK3 pin

Register SCR3 SMR PCR2

Bit Name CKE1 CKE0 COM PCR20 Pin Function

Setting Value 0 0 0 0 P20 input pin

1 P20 output pin

0 0 1 x SCK3 output pin

0 1 x x SCK3 output pin

1 x x x SCK3 input pin

[Legend] x: Don't care.